looks like there is a problim with Mpi more details here:
From :
CoreStatus codes - FaHWiki Code:
63
CoreStatus = 63 (99)
+ Error starting Folding@Home core.
Permission issues? (FAH V5.04)
Folding-community: Error starting Folding@Home core.
With the SMP for Windows client, a CoreStatus = 63 can either be a permissions problem or a MPI registration problem, or both. To fix the problem, set the properties of the fah.exe file to "Run as Administrator" and then run the "install.bat" file again to register MPI and the SMPD service.
Failure to install .NET 2.0 (Win 2K, XP) prior to installing the SMP client can also result in this error.
v5.91 and v6.x
Folding-community: Error starting Folding@Home core.